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<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-US" style="mso-fareast-language:EN-US">The GeoPackage standard recommends some laundering to be done by the clients:<br>
<br>
Implementers should be aware of the fact that SQLite table names are not case<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-US" style="mso-fareast-language:EN-US">sensitive and that table names in sqlite_master and gpkg_extensions may not have<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-US" style="mso-fareast-language:EN-US">the same case. When searching for table name references, it is recommended to<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-US" style="mso-fareast-language:EN-US">transform table names to lower case with the lower() function. See the Abstract<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-US" style="mso-fareast-language:EN-US">Test Suite for an example.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-US" style="mso-fareast-language:EN-US">If GeoNode does not have any other reason for its requirement than what you have pointed out, then maybe it is too strict.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-US" style="mso-fareast-language:EN-US">Having launder in GPKG driver feels still reasonable. SQLite driver has it already
<a href="https://gdal.org/drivers/vector/sqlite.html">https://gdal.org/drivers/vector/sqlite.html</a>.<o:p></o:p></span></p>
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“LAUNDER=[YES/NO]: Defaults to YES. Controls whether layer and field names will be laundered for easier use in SQLite. Laundered names will be converted to lower case and some special characters(' - #) will be changed to underscores.”<br>
<br>
<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-US" style="mso-fareast-language:EN-US">It is either not documented or not implemented, but laundering identifiers to work without "quotas" would also require removing numbers from the beginning
of the name. And at least % should be added to the list of special characters. But total laundering requires quite a lot
<a href="https://www.sqlite.org/draft/tokenreq.html">https://www.sqlite.org/draft/tokenreq.html</a>.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-US" style="mso-fareast-language:EN-US">Laundering characters like äöå for GeoNode feels too much. Who would say into what characters to launder?<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-US" style="mso-fareast-language:EN-US">-Jukka Rahkonen-<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b>Lähettäjä:</b> gdal-dev <gdal-dev-bounces@lists.osgeo.org>
<b>Puolesta </b>Robert Hewlett via gdal-dev<br>
<b>Lähetetty:</b> keskiviikko 3. huhtikuuta 2024 17.51<br>
<b>Vastaanottaja:</b> gdal-dev@lists.osgeo.org<br>
<b>Aihe:</b> [gdal-dev] LAUNDER option for geopackages<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Hi,<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Is there a LAUNDER for geopackages?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I ask this because at the following site:<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><a href="https://www.geopackage.org/guidance/getting-started.html">https://www.geopackage.org/guidance/getting-started.html</a><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Gives this specific guidance:<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Note: <b>For maximum interoperability,</b> start your database identifiers (table names, column names, etc.) with a lowercase character and only use
<b>lowercase characters</b>, numbers 0-9, and underscores (_).<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Which then turned into a <b>constraint</b> in GeoNode (I could not upload a certain geopackage from the township of langley) where I eventually discovered in the celery logs this error:<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">ERROR/ForkPoolWorker-958] {'validation_code': 'RQ1', 'validation_description': 'Layer names must start with a letter, and
<b>valid char<br>
acters are lowercase a-z</b>, numbers or underscores.', 'level': 'error', 'locations': ['Error layer: Parcel_Attributes']}<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I would love LAUNDER to be a more global option.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Upper for: Oracle and Shapefiles.<o:p></o:p></p>
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<p class="MsoNormal">Lower for: Postgresql, Mysql, geopackages<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Just wondering,<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Rob<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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